As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
BTB - L BLEED AIR FAULT - ABNORMAL PRESSURE // REMOVED AND INSTALLED HP BLEED VALVE IAW AMM 36-11-51. REMOVED AND INSTALLED OVERPRESSURE VALVE IAW AMM 36-11-53. OPS CHECK GOOG, BITE TEST OAK. PERFORMED IDLE ON BOTH ENGINES NO FAULTS NOTED OK FOR SERVICE